DE3527651C2 - - Google Patents

Info

Publication number
DE3527651C2
DE3527651C2 DE19853527651 DE3527651A DE3527651C2 DE 3527651 C2 DE3527651 C2 DE 3527651C2 DE 19853527651 DE19853527651 DE 19853527651 DE 3527651 A DE3527651 A DE 3527651A DE 3527651 C2 DE3527651 C2 DE 3527651C2
Authority
DE
Germany
Prior art keywords
spiral antenna
disc
antenna
archimedean spiral
distance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE19853527651
Other languages
German (de)
English (en)
Other versions
DE3527651A1 (de
Inventor
Said Dipl.-Ing. 8910 Landsberg De Modabber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsches Zentrum fuer Luft und Raumfahrt eV
Original Assignee
Deutsches Zentrum fuer Luft und Raumfahrt eV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutsches Zentrum fuer Luft und Raumfahrt eV filed Critical Deutsches Zentrum fuer Luft und Raumfahrt eV
Priority to DE19853527651 priority Critical patent/DE3527651A1/de
Publication of DE3527651A1 publication Critical patent/DE3527651A1/de
Application granted granted Critical
Publication of DE3527651C2 publication Critical patent/DE3527651C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/02—Details
    • H01Q19/021—Means for reducing undesirable effects
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H01Q9/27—Spiral antennas

Landscapes

  • Waveguide Aerials (AREA)
  • Aerials With Secondary Devices (AREA)
DE19853527651 1985-08-01 1985-08-01 Zusatzeinrichtung fuer eine antenne in form eines einzelstrahlers Granted DE3527651A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853527651 DE3527651A1 (de) 1985-08-01 1985-08-01 Zusatzeinrichtung fuer eine antenne in form eines einzelstrahlers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853527651 DE3527651A1 (de) 1985-08-01 1985-08-01 Zusatzeinrichtung fuer eine antenne in form eines einzelstrahlers

Publications (2)

Publication Number Publication Date
DE3527651A1 DE3527651A1 (de) 1987-02-12
DE3527651C2 true DE3527651C2 (enrdf_load_stackoverflow) 1989-05-11

Family

ID=6277429

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853527651 Granted DE3527651A1 (de) 1985-08-01 1985-08-01 Zusatzeinrichtung fuer eine antenne in form eines einzelstrahlers

Country Status (1)

Country Link
DE (1) DE3527651A1 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2021522A6 (es) * 1990-04-20 1991-11-01 Consejo Superior Investigacion Radiador microbanda para polarizacion circular libre de soldaduras y potenciales flotantes.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2242784B1 (enrdf_load_stackoverflow) * 1973-08-31 1977-05-13 Thomson Csf
CA1104712A (en) * 1978-09-08 1981-07-07 Robert Milne Broadband shaped beam antenna

Also Published As

Publication number Publication date
DE3527651A1 (de) 1987-02-12

Similar Documents

Publication Publication Date Title
DE60015822T2 (de) Mehrkeulenantenne mit frequenzselektiven oder polarisationsempfindlichen Zonen
DE1953732C3 (de) Antenne zur Erzeugung eines eingesenkten Kugelsektordiagrammes
DE69330034T2 (de) Wellenleiterlinse und Verfahren zu deren Herstellung
DE2753180A1 (de) Rundstrahlantenne
DE60107939T2 (de) Reflektorantenne mit gemeinsamer apertur und verbessertem zuführungsentwurf
DE60308409T2 (de) Mehrfachstrahlantenne mit photonischem bandlückenmaterial
DE3402659A1 (de) Reflektorantenne fuer den betrieb in mehreren frequenzbereichen
DE2307398A1 (de) Reflektorantenne
DE3130350A1 (de) Ukw - drehfunkfeuer - antenne
DE2610506C2 (de) Reflektor- bzw. Linsenantenne
DE2509923A1 (de) Antennenanordnung zum abstrahlen einer richtstrahlcharakteristik
DE3527651C2 (enrdf_load_stackoverflow)
DE2810483C2 (de) Antenne mit einem Schlitze aufweisenden Speisehohlleiter und einer mit diesem einen Winkel einschließenden Strahlerzeile
DE69524546T2 (de) Frequenzselektive Oberflächenanordnung
DE3801301C2 (de) Fresnel'sche Zonenplatte als Reflektor für eine Mikrowellen-Sende/Empfangsantenne
DE2139216C3 (de) Richtantennenanordnung, bestehend aus einem Hauptreflektorspiegel und zwei Primärstrahlersystemen und Verfahren zur Herstellung einer dielektrischen Reflektorplatte
DE2821699C2 (de) Antenne mit wenigstens zwei voneinander unabhängigen Strahlungquellen
EP0021193B1 (de) Integriertes Antennensystem
DE1791195A1 (de) Richtantenne
EP0439800A1 (de) Doppelreflektor-Antenne
DE3529914C2 (enrdf_load_stackoverflow)
DE60120909T2 (de) Doppeltreflektor-Antenne mit Ablenker
CH679096A5 (enrdf_load_stackoverflow)
DE1516821C3 (enrdf_load_stackoverflow)
DE3930497A1 (de) Cassegrain-antenne

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: DEUTSCHE FORSCHUNGSANSTALT FUER LUFT- UND RAUMFAHR

8339 Ceased/non-payment of the annual fee